Low-energy radiation dosimetry from a density functional theory approac

CIC nanoGUNE Seminars

Speaker

Jacques-Louis Guerda Massilon
Associate Professor, UNAM, Mexico

When

2023/10/02
11:00

Place

nanoGUNE seminar room, Tolosa Hiribidea 76, Donostia - San Sebastian

Host

Emilio Artacho

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Low-energy radiation dosimetry from a density functional theory approach

Guerda Massillon-JL, Conrad S.N. Johnston and Jorge Kohanoff

Instituto de Fisica, Universidad Nacional Autonoma de Mexico, 04510 Coyoacan Mexico City, Mexico
Pacific Northwest National Laboratory, Richland, 99352 Washington State, USA
Instituto de Fusion Nuclear “Guillermo Velarde”, Universidad Politecnica de Madrid, 28006 Madrid, Spain

Lithium fluoride (LiF) is one of the typical alkali fluorides that has been extensively studied for years. Mg and Ti-doped LiF is also the most common thermoluminescent (TL) dosimeter used in several applications. Nevertheless, despite many years of research, the basic processes that give rise to the TL-response induced by low-energy radiation fields are still not well understood. In this seminar, we will present electronic structure calculations of defect states induced by Mg and Ti interstitials or Mg-substitute in LiF as well as the localization of secondary electrons produced during the radiation interaction using first-principles.